166563528 has 16 divisors (see below), whose sum is σ = 416408880. Its totient is φ = 55521168.

The previous prime is 166563517. The next prime is 166563547. The reversal of 166563528 is 825365661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166563528.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3470050 + ... + 3470097.

It is an arithmetic number, because the mean of its divisors is an integer number (26025555).

Almost surely, 2^166563528 is an apocalyptic number.

It is an amenable number.

166563528 is an abundant number, since it is smaller than the sum of its proper divisors (249845352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166563528 is a wasteful number, since it uses less digits than its factorization.

166563528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940156 (or 6940152 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 166563528 is about 12905.9493257954. The cubic root of 166563528 is about 550.2076659334.

The spelling of 166563528 in words is "one hundred sixty-six million, five hundred sixty-three thousand, five hundred twenty-eight".